Patents by Inventor Bettina Hübner

Bettina Hübner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Resin-bonded graphite material, method for the production of a resin bonded graphite material and use thereof
    Patent number: 7094366
    Abstract: A resin bonded graphite material which is especially suitable for use as an electric contact, and a method for the production of this resin bonded graphite material. According to the invention, the resin-bonded graphite material if formed from a mixture of carbon black containing electro-graphite with a unburned graphite content of RG wherein RG?30 percent by weight, electro-graphite free of carbon black as well as binding agents. The material has a specific electrical resistance Wspec wherein Wspec?3500 ??m, and use of the resin bonded graphite material as an electrical contact makes possible substantial exclusion of radio interference.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: August 22, 2006
    Assignee: Schunk Kohlenstofftechnik GmbH
    Inventors: Bettina Hübner, Rainer Sperling, Klaus-Georg Tontsch